NAME
MooseX::RoleQR - allow "before qr{...} => sub {...};" in roles
SYNOPSIS
{
package Local::Role;
use MooseX::RoleQR;
after qr{^gr} => sub {
print " World\n";
};
}
{
package Local::Class;
use Moose;
with qw( Local::Role );
sub greet {
print "Hello";
}
}
Local::Class->new->greet; # prints "Hello World\n"
DESCRIPTION
Method modifiers in Moose classes can be specified using regular
expressions a la:
before qr{...} => sub {...};
However, this is not allowed in Moose roles because Moose doesn't know
which class the role will be composed with, and thus doesn't know which
method names match the regular expression. Let's change that.
This module implements regular expression matched method modifiers for
Moose roles. It does so by deferring the calculation of which methods to
modify until role application time.
The current implementation handles only "before", "after" and "around"
modifiers (not "override"), and thus it overrides the following standard
Moose::Role keywords:
"before Str|ArrayRef|RegexpRef => CodeRef"
"after Str|ArrayRef|RegexpRef => CodeRef"
"around Str|ArrayRef|RegexpRef => CodeRef"
Caveat Regarding the Order of Method Modifiers
Moose executes method modifiers in a well-defined order (see
Moose::Manual::MethodModifiers for details). This module has the
potential to disrupt that order, as regular expression matched modifiers
are always applied after the role's other modifiers have been applied.
Caveat: no "use Moose::Role"
You should "use MooseX::RoleQR" *instead of* Moose::Role; not *as well
as*.
General Caveat
There's some pretty nasty stuff under the hood. Let's pretend it's not
there.
BUGS
Please report any bugs to
.
SEE ALSO
Moose::Role.
AUTHOR
Toby Inkster .
COPYRIGHT AND LICENCE
This software is copyright (c) 2012 by Toby Inkster.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
DISCLAIMER OF WARRANTIES
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.